Machine gives this error when i try too see PLC Status.

Machine is operating normal.

But when i try too watch the plc status in diagnostics it gives me the 120201 error.

NC and PLC are replaced.HDD is replaced.

Error still occurs .

When i leave the plc status page then the error is gone and machine fully functional.

Soo only the fault when i enter the plc status page.

Any1 have a suggestion?Faulty cable?

Thx

Ty

All posts are different from my problem.

I only get the error when i open the plc status page.When i close the page the error dissapears and machine still working properly.